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146511 (2001 SE81)
Classification: Main-belt Asteroid          SPK-ID: 2146511
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .233348938986436 4.1396e-08  
a 2.607541912247839 1.4277e-08 au
q 1.999074773662143 1.1205e-07 au
i 3.899099535995532 5.9536e-06 deg
node 199.7151825548985 5.1825e-05 deg
peri 226.1201598536706 5.4131e-05 deg
M 98.69941799370176 1.4487e-05 deg
tp 2458578.844796170140
(2019-Apr-05.34479617)
5.9871e-05 TDB
period 1537.961180160514
4.21
1.2631e-05
3.458e-08
d
yr
n .2340761292573246 1.9224e-09 deg/d
Q 3.216009050833535 1.7608e-08 au
  Orbit Determination Parameters
   # obs. used (total)      645  
   data-arc span      6834 days (18.71 yr)  
   first obs. used      2001-08-12  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55102  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 23:55:20  

Additional Information
 Earth MOID = 1.01497 au 
 Jupiter MOID = 2.11725 au 
 T_jup = 3.369 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO453930  

146511 (2001 SE81)          Discovered 2001-Sep-20 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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